The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams
The purpose of this study was to design and evaluate the performance of a transmitting antenna for an HF communications probe system. Monterey, CA, was selected as the transmit site, and San Diego, CA, was selected as the receive site to establish an ionospheric communication link to test the equipm...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1992
|
Subjects: | |
Online Access: | http://www.dtic.mil/docs/citations/ADA261866 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA261866 |
id |
ftdtic:ADA261866 |
---|---|
record_format |
openpolar |
spelling |
ftdtic:ADA261866 2023-05-15T15:10:16+02:00 The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams Bougioukos, Georgios T. NAVAL POSTGRADUATE SCHOOL MONTEREY CA 1992-12 text/html http://www.dtic.mil/docs/citations/ADA261866 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA261866 en eng http://www.dtic.mil/docs/citations/ADA261866 Approved for public release; distribution is unlimited. DTIC AND NTIS Electrical and Electronic Equipment Radio Communications *COMMUNICATION EQUIPMENT *ANTENNAS *IONOSPHERIC PROPAGATION TEST AND EVALUATION ANGLES ELECTROMAGNETIC FIELDS EQUATORIAL REGIONS IONOSPHERE THESES TRANSMITTING GAIN CONSTANTS POLAR REGIONS MEASUREMENT PROBES HIGH FREQUENCY PERFORMANCE(ENGINEERING) IONOSPHERIC COMMUNICATIONS PROBE SYSTEM SLOPING VEE ANTENNA Text 1992 ftdtic 2016-02-22T10:36:01Z The purpose of this study was to design and evaluate the performance of a transmitting antenna for an HF communications probe system. Monterey, CA, was selected as the transmit site, and San Diego, CA, was selected as the receive site to establish an ionospheric communication link to test the equipment involved in the probe system. A sloping-vee antenna was chosen for initial shakedown tests to support the transmitting requirements of the probe system at 5.6, 11, and 16.8 MHz. The Eyring Ground Measurement Probe was used to measure the ground constants at the NPS beach site. The Numerical Electromagnetics Code (NEC) was utilized to analyze the performance of the antenna at the NPS beach, and for average, poor, fair and arctic ground conditions. The antenna provides a maximum gain of 1.46 dBi at 5.6 MHz, 5.56 dBi at 11 MHz, 8 dBi at 16.8 MHz, and positive gain at take-off angles between 3 deg and 33 deg at frequencies from 5.6 to 16.8 MHz.The VSWRs with a standard 600 Ohm to 50 Ohm impedance matching transformer (12:1) are 1.73 at 5.6 MHz, 1.77 at 11 MHz, and 1.53 at 16.8 MHz. Text Arctic Defense Technical Information Center: DTIC Technical Reports database Arctic |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Electrical and Electronic Equipment Radio Communications *COMMUNICATION EQUIPMENT *ANTENNAS *IONOSPHERIC PROPAGATION TEST AND EVALUATION ANGLES ELECTROMAGNETIC FIELDS EQUATORIAL REGIONS IONOSPHERE THESES TRANSMITTING GAIN CONSTANTS POLAR REGIONS MEASUREMENT PROBES HIGH FREQUENCY PERFORMANCE(ENGINEERING) IONOSPHERIC COMMUNICATIONS PROBE SYSTEM SLOPING VEE ANTENNA |
spellingShingle |
Electrical and Electronic Equipment Radio Communications *COMMUNICATION EQUIPMENT *ANTENNAS *IONOSPHERIC PROPAGATION TEST AND EVALUATION ANGLES ELECTROMAGNETIC FIELDS EQUATORIAL REGIONS IONOSPHERE THESES TRANSMITTING GAIN CONSTANTS POLAR REGIONS MEASUREMENT PROBES HIGH FREQUENCY PERFORMANCE(ENGINEERING) IONOSPHERIC COMMUNICATIONS PROBE SYSTEM SLOPING VEE ANTENNA Bougioukos, Georgios T. The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams |
topic_facet |
Electrical and Electronic Equipment Radio Communications *COMMUNICATION EQUIPMENT *ANTENNAS *IONOSPHERIC PROPAGATION TEST AND EVALUATION ANGLES ELECTROMAGNETIC FIELDS EQUATORIAL REGIONS IONOSPHERE THESES TRANSMITTING GAIN CONSTANTS POLAR REGIONS MEASUREMENT PROBES HIGH FREQUENCY PERFORMANCE(ENGINEERING) IONOSPHERIC COMMUNICATIONS PROBE SYSTEM SLOPING VEE ANTENNA |
description |
The purpose of this study was to design and evaluate the performance of a transmitting antenna for an HF communications probe system. Monterey, CA, was selected as the transmit site, and San Diego, CA, was selected as the receive site to establish an ionospheric communication link to test the equipment involved in the probe system. A sloping-vee antenna was chosen for initial shakedown tests to support the transmitting requirements of the probe system at 5.6, 11, and 16.8 MHz. The Eyring Ground Measurement Probe was used to measure the ground constants at the NPS beach site. The Numerical Electromagnetics Code (NEC) was utilized to analyze the performance of the antenna at the NPS beach, and for average, poor, fair and arctic ground conditions. The antenna provides a maximum gain of 1.46 dBi at 5.6 MHz, 5.56 dBi at 11 MHz, 8 dBi at 16.8 MHz, and positive gain at take-off angles between 3 deg and 33 deg at frequencies from 5.6 to 16.8 MHz.The VSWRs with a standard 600 Ohm to 50 Ohm impedance matching transformer (12:1) are 1.73 at 5.6 MHz, 1.77 at 11 MHz, and 1.53 at 16.8 MHz. |
author2 |
NAVAL POSTGRADUATE SCHOOL MONTEREY CA |
format |
Text |
author |
Bougioukos, Georgios T. |
author_facet |
Bougioukos, Georgios T. |
author_sort |
Bougioukos, Georgios T. |
title |
The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams |
title_short |
The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams |
title_full |
The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams |
title_fullStr |
The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams |
title_full_unstemmed |
The Design and Evaluation of Transmit and Receive Antennas for an Ionospheric Communications Probe System: B. Sloping-Vee Beams |
title_sort |
design and evaluation of transmit and receive antennas for an ionospheric communications probe system: b. sloping-vee beams |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADA261866 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA261866 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA261866 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766341310528094208 |